>>280229805>>280231639A big issue with American comics is actually more just how long the runs go a lot of the time.
Like, the definitive contained "full Spider-Man storyline" would be the initial Ultimate run all the way to the Death of Spider-Man which isn't that long all things considered. The big issue is that you're either paying $100 an omnibus, or buying a 4 issue, 30 part collected release that goes in and out of print constantly.
If you want to read Batman chronologically, from his introduction all the way to the end, there are ways to do that, but DC isn't keeping the massive "Golden Age Batman" omnibuses in stock. It's sort of a similar issue to Doctor Who, where you have to know what to look for and then inevitably pirate it (BBC splitting the older series' into "[Actor Name] - Season X" for the BDs with the seasons corresponding to the actor's tenure rather than the season of the show is incredibly confusing for newfags).
But comics also do a lot to get new people. They're just bad at advertising.
Most recently, Marvel has a subscription app where you can read dozens of full runs for a monthly cost, like what Shueisha is doing for MangaPlus, but comics especially were not designed for phones so it could be way more painful to read in that way than a manga.
What DC is doing is also aping manga a fair bit, with new, cheaper releases that ballpark in the same price as manga for complete runs, in a similar form factor (talking 1:1 the same size as a tankoban, just in colour, on the same paper quality). It's the "DC Compact Comics" line which has been going for a couple years now, about $10 a piece for stuff like All-Star Superman, or Batman Hush, but there is no "starting point".
Generally though, that's more because comics aren't entirely intended to have starting points. The continuity idea is a recent phenomenon, most American comics were written to be single issue stories.